Westover (GB) (Frankel {GB}), winner of the G1 Irish Derby and G1 Grand Prix de Saint Cloud, has been retired after sustaining a "career-ending injury" when finishing runner-up in Sunday's G1 Prix de l'Arc de Triomphe. Announcing his retirement on Thursday, the colt's owner-breeder Juddmonte stated that stud plans for the 4-year-old would be announced at a later date. Juddmonte's racing manager Barry Mahon said, "It's devastating news, unfortunately he suffered a career-ending injury on Sunday and he'll have to be retired. Long-term he'll be fine and he'll be okay...